使用端口465从MVC发送电子邮件

Question

我已经尝试了好几天了。 '真的可以使用一些帮助！ 将电子邮件（从MVC应用程序）发送到“ mail.yahoo.com”需要使用端口465（根据其规格）和SSL / TLS。 显然，这需要隐式SSL，而Microsoft仅支持显式SSL。因此，我导入了EASendMail，它被告知可以处理使用端口465所需的隐式SSL连接。我仍然遇到超时错误...（连接失败）。如果有人指出我在哪里搞砸，将不胜感激。

class SendMail
    {
       static public void Go()
        {
            try
            {
                SmtpMail oMail = new SmtpMail("TryIt");

                // Set sender email address, please change it to yours
                oMail.From = "xxxx@att.net";

                // Set recipient email address, please change it to yours
                oMail.To = "xxxx@att.net";

                oMail.Sender = "xxxx@att.net";

                // Set email subject
                oMail.Subject = "test email from c#, ssl, 465 port";

                // Set email body
                oMail.TextBody = "this is a test email sent from c# project, do not reply";

                // Your SMTP server address
                SmtpServer oServer = new SmtpServer("mail.yahoo.com");

                // User and password for ESMTP authentication, if your server doesn't require
                // User authentication, please remove the following codes.
                oServer.User = "xxxx@att.net";
                oServer.Password = "xxxxxxxx";

                // Set 465 SMTP port
                oServer.Port = 465;

                // Enable SSL connection
                oServer.ConnectType = SmtpConnectType.ConnectSSLAuto;

                Debug.WriteLine("start to send email ...");

                SmtpClient oSmtp = new SmtpClient();
                oSmtp.SendMail(oServer, oMail);

                Debug.WriteLine("email was sent successfully!");
            }
            catch (Exception ep)
            {
                Debug.WriteLine("failed to send email with the following error:");
                Debug.WriteLine(ep.Message);
            }
        }
    }